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Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US393792610 Ene 197410 Feb 1976UMC Industries, Inc.Validator for scrip
US42057803 Jul 19783 Jun 1980Teknekron, Inc.Document processing system and method
US460584718 May 198312 Ago 1986Method and apparatus for the coded tagging of articles, particularly garments
US47243099 May 19869 Feb 1988Machine readable document and method for processing
US483742616 Ene 19876 Jun 1989Rand, McNally & CompanyObject verification apparatus and method
US528898025 Jun 199222 Feb 1994Kingsley Library Equipment CompanyLibrary check out/check in system
US53368717 Feb 19929 Ago 1994American Bank Note Holographics, IncorporatedHolographic enhancement of card security
US54632124 Ene 199431 Oct 1995Hitachi Maxell, Ltd.Latent image forming member and method of manufacturing, latent image reading apparatus and latent image reading system
US554810630 Ago 199420 Ago 1996Angstrom Technologies, Inc.Methods and apparatus for authenticating data storage articles
US571994824 Jun 199417 Feb 1998Angstrom Technologies, Inc.Apparatus and methods for fluorescent imaging and optical character reading
US586758627 May 19972 Feb 1999Angstrom Technologies, Inc.Apparatus and methods for fluorescent imaging and optical character reading
US688674825 Jun 19993 May 2005Apparatus and method for purchased product security
US73640725 Dic 200629 Abr 2008Apparatus and method for security
US774028028 Abr 200822 Jun 2010Substrate labeling system

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